Another risk is that dividend funds, particularly Canadian ones, are heavily concentrated in financial stocks, which are experiencing extraordinary volatility. (moneysense.ca)
Second, markets are likely to suffer extraordinary volatility in the wake of Brexit. (larrysummers.com)
Unlike the 2015 general election when the polls were essentially static (& wrong) throughout the election, the 2017 general election has seen some of the most extraordinary volatility in the polls that I can remember. (marriott-stats.com)